Elim­i­nate er­rors quickly

Reg­u­larly flip your can­vas so that you see your work-in-progress in a new light. Do­ing this will also en­sure that mi­nor mis­takes stand out, en­abling you to cor­rect them eas­ily. You can even keep a du­pli­cate win­dow float­ing, where the im­age re­mains flipped. This en­ables you to keep track of both as­pects of the com­po­si­tion.